Introduction: Temporomandibular disorders (TMD) lead to masticatory muscle pain, jaw movement disability and limitation in mouth opening. Pain is the chief complaint 90% of TMD patients which leads severe socioeconomic costs. The purpose this study was evaluate therapeutic effects low level laser therapy (LLLT) compared pharmacotherapy with NSAIDs (naproxen) myofascial pain disorder syndrome (MPDS).Methods: In randomized controlled clinical trial, 40 MPDS were divided into two groups. One...

Two Polyvinyl pyrrolidone(PVP)/chitosan/HZSM-5 nanofibers synthesized with various hydroxyl groups were used for Pb(II) and Ni(II) adsorption in water system. The close aluminum proportion HZSM-5(1) provided by Al(NO3)3 HZSM-(2) Al(OH)3 8.8 45.8%, respectively. characterized FESEM, FTIR TGA. data well interpreted Langmuir isotherm. maximum capacity of PVP/chitosan/HZSM-5(2) higher sites was 89.27 mg.g−1 303.00 ions which greater than qm PVP/chitosan/HZSM-5(1). interaction lead nickel onto...

Abstract In order to find alternative low‐cost adsorbents for volatile organic liquids, the effectiveness of nickel oxide nanoparticles‐modified diatomite (NONMD) in removing benzene was assessed. The impact different operation parameters such as pH, contact time, initial concentration, and adsorption dosage on process evaluated optimum experimental conditions were identified. Surface area morphology nanoparticles characterized by scanning electron microscopy (SEM), Brunauer‐Emmett‐Teller...

The adsorption equilibria of toluene from aqueous solutions on natural and modified diatomite were examined at different operation parameters such as pH, contact time, initial concentration was evaluated optimum experimental conditions identified. surface area morphology the nanoparticles characterized by SEM, BET, XRD, FTIR EDX analysis. It found that in order to obtain highest possible removal toluene, experiments can be carried out pH 6, temperature 25°C, an agitation speed 200 rpm, 150...

Low-power lasers are a group of with power less than 250 mW and unlike high-power they have no effect on tissue temperature; produce light-dependent chemical reactions in tissues. These analgesic features their ability to trigger that reduce pain inflammatory mediators. can also be used instead needles acupuncture decrease pain. Due these been the treatment orofacial pain, including tooth hypersensitivity, post-operative flare-ups, mucositis, facial myalgia, temporomandibular joint disorders...

The role of laser in conservative management oral disease is well established. Laser procedures are common the fields surgery, implant dentistry, endodontic, and periodontic therapy.This case series describes use diode for excision exophytic lesions. All patients attended medicine department Shahid Beheshti University Medical Sciences, Tehran, Iran. Criteria patient selection were accessibility to lesions, fear from blade aesthetics, probability bleeding. An informed consent was filled by...

Introduction: Epulis fissuratum is a tumor-like hyperplasia developing in association with an ill-fitting denture. Case Report: We report 73-year-old female epulis the soft palate as very rare clinical location. She presented chief complaint of abnormal growth along posterior border her upper complete denture well pain and discomfort during mastication. Intraoral examination revealed polypoid fibrous mass, consistency smooth texture. On history examination, provisional diagnosis...

Preventing emission of pollutants in any kind, is a way to protect global environment. The objective this study develop cobalt catalysts supported on alumina for the conversion toxic gas SO2 into elemental sulfur using methane. Although several useful have been proposed, there still need synthesize catalyst with high yield that also persistent during on-stream stability. To end, four different were prepared wet impregnation technique, Co3O4 content ranging from 0 15 wt%. Catalytic activity...

Burning mouth syndrome (BMS) is a chronic pain disorder characterized by chief complaint of oral burning/pain with no clinically observable mucosal lesions. The prevalence BMS has been reported to be 2.5-5.1% in the general population and several psychological disorders have as associated or predisposing factors for BMS. aim this study was determine correlation between anxiety elderly residents sani-taria Tehran, Iran.In cross-sectional analytical study, 50 patients were included along...

Abstract The novel NiAl 2 O 4 spinel was used as support to synthesis cobalt catalysts and investigated for Fischer‐Tropsch synthesis. physicochemical properties of the synthesized (Co/NiAl , Co/Rh/NiAl Co/Ru/NiAl Co/γ‐Al 3 ) were characterized by XRD, BET, ICP, SEM, FESEM, HRTEM, TPR TGA analysis before reaction. It shown use that prepared a modified sol‐gel process had good dispersion. Besides that, Nickel aluminate decreased interaction Co resulting in significant increase reduction...

Background: Chronic sinusitis is one of the most common chronic diseases involving different age groups.Because nature and etiology are not completely known, there any standard treatment for this disease.It has been suggested that low-level laser can be used in treating but limited studies about its usage.In research, intra-oral radiation described implemented first time.Suggested hypotheses efficacy type (intra-oral) maxillary includes fact depth maxilla's vestibule also floor sinus...

This study aims to propose an advanced catalyst for the selective catalytic reduction of SO2, as a sustainable process mitigate emission this toxic gas, which is significant environmental concern. The conversion SO2 through with CH4 elemental sulfur was investigated using Al2O3-Cu catalysts. reaction conducted under atmospheric pressure and at temperature range 550–800°C. A remarkable 99.9% rate 99.5% selectivity were achieved (10%) 750°C. highest rates sulfur, minimal production undesirable...

Peri-implantitis (PI) and chronic periodontitis (CP) are multifactorial diseases of implant/tooth supporting tissue that caused by bacterial infection increased host immune response. T-cell proliferation plays a pivotal role in the orchestration response to infection. BRAF is positive regulator proliferation. The aim this study was evaluate for first time functional single nucleotide polymorphism (SNP) gene association PI CP.A total 194 individuals referred Periodontology Department Shahid...

Cancer is a major cause of death in children under 15 years age.This study aimed to evaluate relationship between demographics and dental status defined group Iranian paediatric patients undergoing cancer therapy.This cross-sectional was accomplished on 161 subjects age ranging 8-12 years. There were 76 cancerous hospitalized at Mahak Hospital (one the children's centers Tehran) as 85 healthy attending Dental School, International Branch Shahid Beheshti University Medical Sciences, Tehran,...

Introduction: It has been demonstrated that laser technology can enhance topical drug absorption. This study aimed to determine the effects of Er,Cr:YSGG radiation before application corticosteroids in healing oral lichen planus. Methods: In this double-blind split-mouth clinical trial, 32 lesions were chosen from eight patients affected by planus (OLP). The randomly categorized into two groups. first group had treatment with triamcinolone NN ointment and second (Er,Cr:YSGG) for weeks...